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@article{MS2_1972__31_166257, author = {Elizabeth A. Magarian}, title = {Direct {Limits} of {Power} {Series} {Rings.}}, journal = {Mathematica Scandinavica}, pages = {103--110}, publisher = {mathdoc}, volume = {31}, year = {1972}, zbl = {0247.13007}, url = {http://geodesic.mathdoc.fr/item/MS2_1972__31_166257/} }
Elizabeth A. Magarian. Direct Limits of Power Series Rings.. Mathematica Scandinavica, Tome 31 (1972), pp. 103-110. http://geodesic.mathdoc.fr/item/MS2_1972__31_166257/